1Miriam and Aaron spoke against Moses because of the Cushite woman whom he had married; for he had married a Cushite woman. 2They said, “Has Yahweh indeed spoken only with Moses? Hasn’t he spoken also with us?” And Yahweh heard it.
3Now the man Moses was very humble, more than all the men who were on the surface of the earth. 4Yahweh spoke suddenly to Moses, to Aaron, and to Miriam, “You three come out to the Tent of Meeting!”
The three of them came out. 5Yahweh came down in a pillar of cloud, and stood at the door of the Tent, and called Aaron and Miriam; and they both came forward. 6He said, “Now hear my words. If there is a prophet among you, I, Yahweh, will make myself known to him in a vision. I will speak with him in a dream. 7My servant Moses is not so. He is faithful in all my house. 8With him, I will speak mouth to mouth, even plainly, and not in riddles; and he shall see Yahweh’s form. Why then were you not afraid to speak against my servant, against Moses?” 9Yahweh’s anger burned against them; and he departed.
10The cloud departed from over the Tent; and behold, Miriam was leprous, as white as snow. Aaron looked at Miriam, and behold, she was leprous.
11Aaron said to Moses, “Oh, my lord, please don’t count this sin against us, in which we have done foolishly, and in which we have sinned. 12Let her not, I pray, be as one dead, of whom the flesh is half consumed when he comes out of his mother’s womb.”
13Moses cried to Yahweh, saying, “Heal her, God, I beg you!”
14Yahweh said to Moses, “If her father had but spit in her face, shouldn’t she be ashamed seven days? Let her be shut up outside of the camp seven days, and after that she shall be brought in again.”
15Miriam was shut up outside of the camp seven days, and the people didn’t travel until Miriam was brought in again. 16Afterward the people traveled from Hazeroth, and encamped in the wilderness of Paran.
Aaron was the son of Amram and Jochebed, the brother of Moses and Miriam. He was the first priest of the people of Israel. He was appointed by God to be a spokesman for Moses when Moses went before the Pharaoh of Egypt to demand that Pharaoh would release the people of Israel from slavery. When facing Pharaoh, it was Aaron who threw his rod before Pharaoh, which turned into a snake. He also assisted Moses in declaring various judgments on Pharaoh and the Egyptian people until finally the Pharaoh conceded to the demand.
Aaron was also present at Sinai when Moses received the Ten Commandments, but he also conceded to the creation of the Golden Calf by the Israelites during the time that Moses was on the mountain receiving the law of God.
Aaron was important for the development of the priesthood in Israel, and had two sons who died, and Eleazar and Ithamar succeeded him as priests. After his death, he was buried on Mt. Hor.
The preceding information is based on Herbert Lockyer, All the Men of the Bible, (Zondervan: Grand Rapids, MI, 1958) and All the Women of the Bible (Zondervan: Grand Rapids, MI, 1967), Who's Who in the Bible (Bonanza Books, New York, 1981), and Biographies of Bible Characters, People and Characters in the Bible.